{
  "abstract": "Background: The British Columbia Farmers’ Market Nutrition Coupon Program (FMNCP) provides lower-income households with coupons to purchase healthy foods at farmers’ markets.\n\nAim: This pragmatic randomized controlled trial (RCT) will examine the effectiveness and cost-effectiveness of two higher subsidies for healthy food, compared to the usual FMNCP healthy food subsidy, on the diet quality (primary outcome), food insecurity, and other health-related outcomes of 276 parent–child dyads with lower incomes.\n\nMethods: In this single-blind, three-arm, parallel-group pragmatic RCT, 276 parent–child dyads in lower-income households will be randomized to receive the usual FMNCP healthy food subsidy ($27/week) or a subsidy that is two ($54/week) or three times ($81/week) higher. Participants will receive 16 weeks of coupons that can be redeemed for up to 20 weeks. Outcomes will be assessed in one parent (18–64 years) and child (6–17 years) from each household pre-, mid-, and post-intervention. Dietary intake will be collected via two 24-h dietary recalls at each time point to calculate diet quality using the Healthy Eating Food Index-2019. Food insecurity and other health-related outcomes will be assessed using validated self-reported instruments. Mixed effects regression will assess the effects of the interventions, relative to the usual subsidy, on outcomes in parents and children. A full incremental analysis will quantify the cost-effectiveness ratios of the healthy food subsidies.\n\nSummary: This dose-response RCT will show how the diet quality, food insecurity, and other health-related outcomes of parents and children vary according to subsidy amount.\n\nTrial registration: The trial is registered at www.clinicaltrials.gov (NCT06992947).",
  "abstract_shown": true,
  "affiliations": [
    "Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada",
    "Department of Medicine, Cumming School of Medicine, University of Calgary Foothills Medical Centre—North Tower, Calgary, AB, Canada",
    "Department of Cardiac Sciences, Cumming School of Medicine, Calgary, AB, Canada",
    "British Columbia Association of Farmers’ Markets, Vancouver, BC, Canada",
    "Future Cities Institute, School of Planning, University of Waterloo, Waterloo, ON, Canada"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 11,
  "authors": [
    {
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      "name": "Dana Lee Olstad",
      "orcid": "0000-0001-9787-9952"
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        1,
        2
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      "name": "David JT Campbell"
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    {
      "affs": [
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      ],
      "name": "Tolulope T Sajobi"
    },
    {
      "affs": [
        3
      ],
      "name": "Heather O’Hara"
    },
    {
      "affs": [
        3
      ],
      "name": "Peter Leblanc"
    },
    {
      "affs": [
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      ],
      "name": "Gavin R McCormack"
    },
    {
      "affs": [
        0
      ],
      "name": "Leticia Radin-Pereira"
    },
    {
      "affs": [
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      ],
      "name": "Yun Yun Lee"
    },
    {
      "affs": [
        0
      ],
      "name": "Michelle L Aktary"
    },
    {
      "affs": [
        4
      ],
      "name": "Leia M Minaker"
    },
    {
      "affs": [
        0
      ],
      "name": "Eldon Spackman"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b4ysbcxp11wv3.bib",
  "cited_by": 0,
  "doi": "10.1177/02601060261473062",
  "fulltext_url": "https://pmc.ncbi.nlm.nih.gov/articles/PMC13744591/",
  "id": "b4ysbcxp11wv3",
  "issns": [
    "0260-1060",
    "2047-945X"
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  "landing_url": "https://doi.org/10.1177/02601060261473062",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Protocol"
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      "openalex",
      "2739|Food Security and Health in Diverse Populations"
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  "openalex": "W7212377192",
  "pdf_url": null,
  "pmcid": "PMC13744591",
  "pmid": "42731058",
  "published": "2026-09-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b4ysbcxp11wv3.ris",
  "sources": [
    {
      "first_seen": "2026-11-11T12:22:06Z",
      "native_id": "PMC13744591",
      "source": "pmc",
      "url": "https://doi.org/10.1177/02601060261473062"
    }
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  "subjects": [
    {
      "field": "medicine",
      "origin": "openalex:2739|Food Security and Health in Diverse Populations",
      "subfield": "epidemiology-public-health"
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  ],
  "title": "Does the British Columbia Farmers’ Market Nutrition Coupon Program improve the diet quality and food security of parents and children with lower incomes? Protocol for a dose-response, pragmatic randomized controlled trial",
  "title_text": "Does the British Columbia Farmers’ Market Nutrition Coupon Program improve the diet quality and food security of parents and children with lower incomes? Protocol for a dose-response, pragmatic randomized controlled trial",
  "type": "peer-reviewed",
  "updated_at": "2026-11-12T12:21:03Z",
  "url": "https://research.draconitic.com/paper/b4ysbcxp11wv3",
  "venue": "Nutrition and Health",
  "versions": []
}